CONCENTRATION OF SOLUTION

Concentration is

• the amount of solute in the solvent

• the amount of solvent in the solute

• density

• particle size

Tags

NGSS.HS-PS1-5

Which solution is more concentrated?

Solution 1:

500 mL of water

100 g of salt

Solution 2:

500 mL of water

90 g of salt

• Solution 1

• Solution 2

• They have the same concentration

• I have no idea

Which solution is more concentrated?

Solution 1:

20 mL of water

5 g of salt

Solution 2:

20 mL of water

10 g of salt

• Not enough information to tell

• Solution 1

• Solution 2

• They are equally concentrated

In order to dilute a solution, you need to

• add more of the solid

• add more water

• find the mass

• find the volume

Both of these solutions have a volume of 30 mL. Which solution is more concentrated?

• orange solution

• green solution

• they are equally concentrated

Tags

NGSS.MS-PS1-2

Both solutions have equal volumes of 30 mL. Which solution is more diluted?

• Solution X

• Solution Y

Tags

NGSS.MS-PS1-2

Calculate the mass percent of solution, if there is 100 g of sugar and 400 g of water

• 30

• 25

• 20

• 15

What is the molarity of 4 g of NaCl (MM=58.45) in 3,800 mL of solution?

• 0.018 M
• 0.0011 M
• 1.052 M
• 0.062 M

Calculate the molarity of the following solution:  1.0 mole of KCl in 750.0 mL of solution.

• 0.750 M
• 99 M
• 1.3 M
• 2.0 M

Molality (m) = moles of solute / _________________________.

• kilogram of solvent

• kiloliter of solvent

• kilometer of solvent

• ounces of solvent